690866556630 has 16 divisors (see below), whose sum is σ = 1658079735984. Its totient is φ = 184231081760.

The previous prime is 690866556593. The next prime is 690866556631. The reversal of 690866556630 is 36655668096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690866556631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11514442581 + ... + 11514442640.

It is an arithmetic number, because the mean of its divisors is an integer number (103629983499).

Almost surely, 2^690866556630 is an apocalyptic number.

690866556630 is an abundant number, since it is smaller than the sum of its proper divisors (967213179354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690866556630 is a wasteful number, since it uses less digits than its factorization.

690866556630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23028885231.

The product of its (nonzero) digits is 41990400, while the sum is 60.

The spelling of 690866556630 in words is "six hundred ninety billion, eight hundred sixty-six million, five hundred fifty-six thousand, six hundred thirty".